@article{oai:tsukuba.repo.nii.ac.jp:00053611,
 author = {NAGAI, Setsuo},
 issue = {2},
 journal = {Tsukuba Journal of Mathematics},
 month = {Oct},
 pages = {207--225},
 title = {A characterization of isoparametric hypersurfaces in a sphere with $g<=3$},
 volume = {38},
 year = {2014}
}